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manwithav8
14th May 2008, 19:39
Ok I could be well wrong here so please correct me if I am wrong..

The law that is proposed is that on a learners licence you cannot ride a bike with a power to weight ratio not exceeding 150kw to the tonne. (150 : 1000)

Now I have done some calcs and this is where I could be wrong but a 2001 Kawasaki KLR250 is producing 249kw to the tonne... This bike will not be learner compatible.

The way I worked it out is, the weight of the KLR is 118kg. So 1000kg divided by 118 is 8.5.

The power output is 40hp which is = to 29.4kw.

So, 8.5 x 29.4kw = 249.9. Thus giving a power to weight ratio of 249.9 : 1000

So there you have it, the poxy KLR250 will no longer suit a learner rider as they have too much poke.....

Am I correct?

James Deuce
14th May 2008, 19:45
No. Add 80kg rider like they do in NSW.

Then do your calculations.

Then do a Google search for LAMS, look at the list, and then report back when bits of the sky really do hit you in the head.

manwithav8
14th May 2008, 19:50
No. Add 80kg rider like they do in NSW.

Then do your calculations.

Then do a Google search for LAMS, look at the list, and then report back when bits of the sky really do hit you in the head.

OH SHIT!!!!!!!!!

So there is an approved list already... Damn, it lol.....well thanks for that, my research was a waste of time then lol

pocketcracker
14th May 2008, 19:53
yep the list is on here smwhee read it the other day ,, or google the frucka !

PirateJafa
14th May 2008, 19:58
Kawasaki KLR250

All 250cc bikes (barring the 250cc two-stroke super-sports) are automatically okay for learners.

u4ea
14th May 2008, 20:04
It's the "Arse may fall out of 250 market" thread you want..

Oakie
14th May 2008, 20:09
Two things.
1) I wonder why they didn't just construct the formula to reflect only the weight of the bike and exclude the rider. There would be a different target figure but surely that would be a bit easier.

2) I wonder then if there will be a market for lightening those bikes just under the threshold. I mean, get a fat ass 500 or something that is legal in the hands of a learner but then exchange bit to make it lighter and therefore raise the weight to HP ratio.

Grub
14th May 2008, 20:19
Or .... if you eat enough pies, you might be able to ride a 900 :)

Trouser
14th May 2008, 20:33
Ok I could be well wrong here so please correct me if I am wrong..

The power output is 40hp which is = to 29.4kw.

Am I correct?

not a chance that a klr250 has 40hp. They are around 20kw.

manwithav8
15th May 2008, 20:40
not a chance that a klr250 has 40hp. They are around 20kw.

Pretty sure the manual doesn't lie....

Headbanger
15th May 2008, 20:44
Pretty sure the manual doesn't lie....


Engine:

* Type: Four-stroke, DOHC, four-valve, single cylinder,
* Displacement: 249 cc
* Bore and Stroke: 74.0 x 58.0 mm
* Carburetor: Keihin CVK34
* Compression ratio: 11.0:1
* Output: 28 horsepower 1986–1989, 22 horsepower 1990–2005
* Starting Method: Kick

clint640
16th May 2008, 10:04
Pretty sure the manual doesn't lie....

:lol::lol::lol::lol::laugh:

Maybe if you bolted on a turbo & fed it methanol & nitrous, in the 10 seconds before it lunched itself it might make 40hp. A brand new KLR650 only makes about that.

Clint

glice
16th May 2008, 10:11
Ive got a klr250 and I've always read 30hp, its 22kw not hp and if you work that out its 30hp.

FilthyLuka
16th May 2008, 10:56
KLR250 will be learner legal as it is a 250 4 stroke and therefore automatically OK

But who cares? Aprilia SXV 5.5 :rockon:

avgas
16th May 2008, 11:21
i still believe that they are going the wrong way about it. I think that they are giving learners too much rights. You are only on your learners for 6 months. Why not DECREASE the horsepower learners can have.
I used to be young dumb and full of.....bullshit.
If it wasn't for my dad only allowing me on a crap Kawa 100, then a TS185 and then an RG150 - i would probably be dead.
besides i have ridden plenty of bikes out there with low hp, but easily enough torque to kill you mid corner.
Oh well, if Darwin's theory still works, the big cc squids will die just as easy as their 250cc cousins.

Squiggles
16th May 2008, 11:25
As far as i know, in aus 250 4T's are automatically approved, the power to weight calcs are done on an 80kg rider + the weight of the vehicle, and these apply to anything over 250. 250 2T's are not legal on your learners/restricted licence.

xwhatsit
16th May 2008, 12:16
250 2T's are not legal on your learners/restricted licence.
I think it's only certain 250 strokers? I.e. the NSR250, RS250 sort of crowd.

I think those with an old Villiers-powered Ariel Arrow or even an RD250 will be safe.

90s
16th May 2008, 15:20
I think it's only certain 250 strokers? I.e. the NSR250, RS250 sort of crowd.

I think those with an old Villiers-powered Ariel Arrow or even an RD250 will be safe.

get ye all into the "legal & politics" sub-forum where this has all been covered.

Trying to sneek around the rules designed to ensure learners have sensible bikes is not ... sensible. No-one should panic about this concerned with the type of bike they are riding (rather than the state of the market), except 2T riders ...

xwhatsit
16th May 2008, 15:41
get ye all into the "legal & politics" sub-forum where this has all been covered.

Trying to sneek around the rules designed to ensure learners have sensible bikes is not ... sensible. No-one should panic about this concerned with the type of bike they are riding (rather than the state of the market), except 2T riders ...
Stuffed if I'm going to trawl through all those dozens of pages again, but here's what the LAM list for NSW (http://www.rta.nsw.gov.au/licensing/tests/motorcycleridertrainingscheme/motorcyclesnoviceriders.html) says:

Eligible Motorcycles in the category 0-260ml.
All models with the exception of:
Suzuki RGV250
Kawasaki KR250 (KR-1 and KR1s models)
Honda NSR250
Yamaha TZR250
Aprila RS250


So if we follow this system (which is pretty much what's going to happen, right?) we'll keep getting to ride our RZ250s around (which is quite alright, as they're not too different power-to-weight compared to a CBR250RR).

TygerTung
17th May 2008, 21:44
Choice, you can still ride the unreliable, but barking mad KR250A and B and S model yee-ha!!!! I wouldn't recommend these bikes for a learner, they go pretty hard when they aren't melting front cylinder pistons!!!!

I just looked up the RZ250, and they seem to be putting out 48 hp and with the weight being around 144 kilograms they should go pretty good compared to a CBR with a flat as powercurve maybe 38 hp, and about 180 kilograms!!!